Wilwood 140-14262-R FNSL4R-MC4 Big Brake Rear Axle Disc Brake Kit

The Wilwood FNSL4R-MC4 Big Brake Rear Axle Kit (140-14262-R) is a complete disc brake conversion solution designed for late-model high-performance and custom vehicles. This kit provides a practical way to add rear disc brakes while incorporating an effective parking brake system via the MC4 parking brake assembly, making it an ideal complement to front big brake upgrades.

At the heart of this kit are the high-capacity FNSL4R calipers, matched with BP-10 compound brake pads and oversized 12.88-inch rotors. The system is engineered to work in harmony with your vehicle's OE master cylinder output, factory ABS function, and individual brake bias requirements — ensuring seamless integration without sacrificing safety or performance.

Key Features:

• FNSL4R high-capacity rear calipers for exceptional stopping power
• Integrated MC4 parking brake assembly for reliable park/emergency brake function
• Oversized 12.88" rotors for improved heat dissipation and fade resistance
• BP-10 compound brake pads for high-performance friction characteristics
• Compatible with OE master cylinder output and factory ABS systems
• Engineered to meet individual vehicle brake bias requirements
• Complements big wheel, tire, and suspension upgrades on custom builds
• Ideal companion to front big brake upgrade kits

This rear axle brake kit delivers enhanced braking performance, increased durability, and a high-tech appearance that pairs perfectly with custom wheel, tire, and suspension setups. Whether building a dedicated track car or an aggressive street machine, the Wilwood 140-14262-R provides the rear braking upgrade needed to match front big brake systems and elevated performance demands.